2003 GMC Sierra electrical problems

Filed Dec 9, 2014 · Electrical · 60,000 miles · MI

Tl* the contact owns a 2003 gmc sierra. The contact stated that all the gauges on the instrumental panel failed. The vehicle was taken to a dealer who diagnosed that the panel cluster failed. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 60,000 updated 1/28/15

Filed Oct 16, 2014 · Electrical · NV

2003 gmc sierra. Consumer writes in regards to a speedometer failure. *tgw the consumer stated she was driving 55 MPH. However, the speedometer showed 100 MPH. It went on for a couple of days and then went back to normal. The next day, the speedometer was acting erratic again. The consumer took the vehicle to the dealer, hoping it would be something small, but it turned out to be a $700 expense.

Filed Mar 24, 2014 · Electrical, Fuel system · 188,555 miles · IN

Vehicle goes into reduced engine power mode at interstate speeds without warning and increases risk of being rear ended, does not have enough power to safely get the vehicle off the road when in the left lane with other cars behind. More instances of this same scenario over the past few months than I can count. Throttle body has been cleaned. There are too many internet forum posts detailing many different parts having been replaced by dealerships and other mechanics and the problem still existing to just start replacing parts because the costs too quickly is unsustainable.

Filed Oct 29, 2013 · Electrical · 170,000 miles · MI

Tl* the contact owns a 2003 gmc sierra hd. The contact stated that the wiring system caused the battery and the alternator to malfunction. In addition, the dash cluster malfunctioned and the reduced engine power warning light remained illuminated. The contact had to restart the vehicle for the dash cluster to function properly. The contact took the vehicle to the dealer where he was advised that there was an unknown electrical issue with the vehicle. The vehicle was not repaired the failure mileage was 170,000.

Filed Jul 22, 2013 · Electrical · 111,000 miles · MI

Tl* the contact owns a 2003 gmc sierra. The contact stated that the vehicle was parked and the engine was turned off when he heard a noise and noticed that the air conditioning blower had independently activated. The failure recurred and the battery was disconnected in order to deactivate the blower motor. The vehicle was taken to the authorized dealer where the blower motor resister was replaced. The manufacturer was made aware of the defect and they informed there was no recall. The approximate failure mileage was 111,000.

Filed Feb 26, 2013 · Electrical · 64,500 miles · CA

The speedometer in the truck registers false MPH. For example when parked the speedometer reads 50 MPH, when traveling on the road the speedometer will register 80 MPH and the actual speed may be only 30 MPH.

Filed Mar 22, 2011 · Electrical · 67,876 miles · MS

2003 gmc sierra pick-up I was driving today about 45 to 50 miles an hour and was running great and about an hour later, my speedometer went up to 120 miles an hour and would not go back down. When I got home and put my vehicle in park, the speedometer would only go down to 70 miles an hour. I have almost 68,000 miles on it. What is wrong and what can I do to get this fixed immediately before I get a ticket?

Filed Jul 28, 2009 · Electrical · 200,000 miles · TX

Driving 2003 sierra 2500 hd 4wd crew cab and all of sudden the speedometer needle quit stopped on zero and never moved. Then the instrument gauges or cluster completely stopped working. The defective stepper motor in the cluster is the problem.

Filed Feb 23, 2009 · Electrical · 55,000 miles · OH

Speedometer fails to work. It occurs continuously. Nothing has been done to fix the problem.

Filed Mar 21, 2008 · Electrical · 90,000 miles · MA

Summer 2007 we received a notice from gmc for our 2003 gmc sierra that stated "your vehicle could develop a condition where one or more of the instrument panel gauge needles may stick, flutter, or become inoperative. This may cause inaccurate readings, including the speedometer and the fuel gauge." they offer to correct this problem if it occurs in vehicles within 7 years or 70,000 miles, whichever is less. Our gmc sierra developed this condition recently at 5 years and 90,000. The speedometer began to display inaccurate speeds and eventually started erratically pulsing and sometimes displaying no speed. This is very unsafe to have this happen when you are driving. There are numerous entries online indicating that this has happened to many of the vehicles in the 5 year range, many just after the mileage cut off. Displaying proper speed is important to safety and if their instrument panels are failing on multiple vehicles the manufacturer should be responsible for replacing them regardless of age or mileage.